Inventor
Arthur L. Ludwig
Inventor
Hamilton, OH, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B21Dprimary
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material12%
B23PMetal-working not otherwise provided for12%
B24CAbrasive or related blasting with particulate material12%
C23FNon-mechanical removal of metallic material from surface12%
F05BIndexing scheme relating to wind, spring, weight, inertia or like motors, to machines or engines for liquids covered by subclasses f03b, f03d and f03g12%
F23RGenerating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers12%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes12%
Y10TTechnical subjects covered by former us classification12%
F01DNon-positive displacement machines or engines, e.g. steam turbines6%
PatentTitleYear
7,292,965'Method and system for estimating manufacturing costs'20076,775,647'Method and system for estimating manufacturing costs'20045,441,574'Hollow airfoil cavity surface texture enhancement'19955,391,256'Hollow airfoil cavity surface texture enhancement'19954,796,423'Sheet metal panel'19894,688,310'Fabricated liner article and method'19874,628,694'Fabricated liner article and method'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986–1995Patents assigned to GEN ELECTRIC (5)· patent assignee history
1986–1989Based in Cincinnati, OH, US· patent location history
1995–2007Based in Hamilton, OH, US· patent location history
2004–2007Patents assigned to AMERICAN TECHNOLOGY & SERVICES (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN ELECTRIC | 5 | 1986–1995 |
| AMERICAN TECHNOLOGY & SERVICES | 2 | 2004–2007 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hamilton, OH, US | 4 | 1995–2007 |
| Cincinnati, OH, US | 3 | 1986–1989 |